Well-drilling machine.



S I M 0 0 L D Fm WELL DRILLING MACHINE.

APPLIOATION FILED SEPT. 15, 1902.

Q SHEETS-SHEET 1.

N0 MODEL.

No. 731,313. PATENTED JUNE 1s, 1.903.

G. '1). LOOMIS.

WELL DRILLING MACHINE.

APPLICATION FILED SEPT. 16-, 1902.

6 SHEETS-SHEET 3,

N0 MODEL No. 731,313,. PATENTED JUNE'lB, 190:3.

' G. D. LOOMIS.

WELL DRILLING MACHINE. 4 APPLICATION nun 811F116, 1902.

N0 MODEL. 7 6 BEEETBSHBET 4- wii zsszs." V l fl isjgazgfarf I V I i I Jlfiergz ys n V o. 731,313. PATENTED JUNE 16, 1903. e. 1). Loews WELL DRILLING} MACHINE.

APPLICATION FILED, $331,151,, 1.19102.

5 SHEETS-SHEET 5.

N0 MODEL Wiigesszs arns ca, PHDTO-UTHO wAsnmomm'u. c.

No. 731,313. I

Patented June 16, 1903.

GEORGE DUDLEY LOOMIS, OF TIFFIN, OHIO.

WELL-=DRILLING MACHINE.

SPECIFICATION forming art of Letters Patent No. 731,313, dated June 13, 1903. Application filed September '15. 1902. Serial No. 123,525. (No mocleL) of Ohio, have invented a new and useful VVell-.

Drilling Machine, of which the following is a. specification. 1

This invention relates to Well-drilling machines. v 1

.The object of the invention is, generally stated, to simplify the construction and render more efficient and positive the operations; of the different parts of the machine and to reduce wear to a minimum.

With these and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a well-drilling machine, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which like numerals of reference indicate corresponding parts, there is illustrated one form of embodiment of the invention capable of carrying the same into practical .operation, it being understood that the elements therein exhibited may be varied or changed as to shape, proportion, and exact manner of assemblage without departing from the spirit thereof.

In the drawings, Figure 1 is a view in perspective of a machine constructed in accordance with the present invention. Fig. 2 is a view in perspective, taken from the rear of the machine. Fig. 3 is a view in transverse section, taken through the crank-shaft. Fig. 4 is a longitudinal sectional view taken on. the line 4 4, Fig. 3, and looking in thedirection of the arrow thereon. Fig. 5 is a sectional detail View of one form of clutch mechanism for controlling the crank-shaft. Fig.

6 is a perspective detail view of the crank.

mechanism for operating the band-brake of the main rope-spool. Fig. 7 is a view in plan, exhibiting the arrangement of the drivinggears of the machine. g

Referring to'the drawings, ,1 designates generally the framework for supporting the operative parts of the machine, and as this may be of the usual or any preferred construction detailed illustration thereof is deemed unnecessary.

the beams 2 is a gear-wheel 7, having one side provided with a laterally-extending flange 8, forming a chamber in which is housed a disk 9, rigidly keyed to the shaft, said disk carrying on its periphery a split ring 10 and held from disengagement therewith at its outer side by washers 11, bolted to the disk, and at its inner side by the walls of the gear 7, the said ring. being held from turning with relation to the disk by a log 12, which engages with a recess 13, formed in the rim of the disk, and by two inwardly-extendingtoes 14, which engage with the walls of a cleft also in the rim of the disk, the opposed ends of the terminals of the ring being beveled at 16 to be engaged by the wedge-shaped point of a ringexpander 17, working between two lugs 18 on the hub 19 of the disk and held from disconnection therefrom by a plate 20, bolted to the lugs. The expanding member or wedge 17 bears at its lower end upon a lever 21, pivoted at its rear end 'upon a bar 22, having bearings in the lugs 18, and carrying at its free end a bolt 23, having a rounded head 24 to be engaged by a cone 25, loose on the shaft 3, said cone being moved into and out of engagement with the head of the.bolt 23 by a lever 10 fulcrumed at 11 upon one of the cross-pieces 12 of the machine.

adjusting-nut 2 6, by which to adjust the head with relation to the cone.

Arranged near thefront end of the machine and journaled in suitable bearings thereon is the main-rope-spool shaft 14., one end of which projects laterally beyond the side of the frame and carries a band-wheel 15, the

The inner end of the IOC other end portion of the shaft having keyed to it a gear 16, which forms one of the end flanges of the spool, the other end flange 17 (clearly shown in Fig. being of the usual or any preferred construction. The gear 16 is adapted to mesh with a gear 18, disposed between the gears 7 and 16, by which arrangement motion from thegear 7 ist-ransmitted to the gear 16, and thus to the main rope-spool. The gear 18 is slidably mounted on a supporting-shaftl) to permit ofits beingthrown into and out of mesh with the gears 7 and 16.for a purpose that will presently appear. The mechanism for shifting the gear 18 comprises an L-shaped lever 20, fulcru med at its bend at 21 to one of the base-sills of the frame, the free end of the lever projecting beyond one sideof the frame, as shown in Fig. 1, and thus to be in convenient reach of the operator. The connection between the lever 20 and the hub of the gear 18 may be effected in any preferred manner, it being shown in this instance as accomplished by providing the upper end of the lever 20 with a yoke 22 to engage a groove in the hub of the gear in the same manner as described in connection with the cone 25. By the provision of the shit'table gear 18 unnecessary wear of the friction-clutch on the crank-shaft will be obviated, inasmuch as when tools or the casing are being lowered into the well the clutch may remain idle, as under these conditions the rotation of the casing-reel and of the main rope spool will be controlled by other means.

The band-wheel 15 on the main rope-spool shaft 14 has associated with it a band-brake 23, one end of which is suitably secured at 24: to one of the sills of the frame and the other end is connected with a crank 25 on a shaft 26, journaled in suitable bearings 27 on the under side of the sill, the opposite end of the shaft being provided With aorank 28, terminating in a lever 29, extending to the rear of the frame, as shown in Fig. 4. By rocking the lever 29 the band-brake 23 may be applied or released, as may be desired, thus to control the speed of rotation of the rope-spool shaft.

Journaled in bearings upon the beams 2 in front of the crank-shaft is a shaft 30, upon which are mounted two gears 31 and 32, the gear 31 being keyed forsliding movement on the shaft and the gear 32 being rigid there with, and connected in any suitable manner with the gear 32 is a band-wheel 33, preferably of wood, around which passes a bandbrake 34, operated by a lever 35. The gearwheel 32 meshes with a gear-wheel 36, rigidly keyed to the casing-rope-reel shaft 37, which is provided with the usual flanges 38. When the gear 31 is in the position shown in Fig. 2that is to say, out of mesh with the gear 7the latter gear and the gears 16-and 18 can be operated independently of the gears 31, 32, and 36 and the easing-reel 38, these parts remaining stationary. By shifting the gear-Wheel 31 to bring it in mesh with the gear-wheel 7 it throws into operation the gear-wheel 32, which communicates motion through the gear 36 to the casing-reel shaft, thus to effect lowering of the casing, the lever 35, Fig. 2, being operated to cause the brake-head 34 to cooperate with the bandwheel 33 to control the descent of the casing without the assistance of the engine.

When tools are to be lowered into the hole, the intermediate gear 18 is thrown out of mesh with the gears 7 and 16, so that the main rope-spool runs independently, the other gears of the machine remaining stationary and the rope-spool being controlled through the band-brake 23. \Vhen it is desired to reel up the main drilling-rope to control therope While spudding, the intermediate gear 18 is thrown back into mesh with the gears '7 and 16 through the lever 20, and the operation of the machine is then controlled by the friction-clutch and the brake through the medium of the levers 10 and 20 or 29.

It will be observed that the main rope-spool and the casing-reel can be operated together or separately, or the work of drilling and spudding, which requires the rotation of the crank-shaft, can be accomplished with both of the said parts remaining idle. When the machine is used for spudding, the three gears 7, 16, and 18, which control the main rope-spool, are usually left in mesh, and if too much rope is fed out at any time by using the brake it can be taken up by throwing the friction-clutch into gear, and by manipulating the brake and the friction-clutch properly the rope can be taken up or let out as desired. Further, by meshing the gears 7 and 31 and throwing on the friction-clutch the casing-reel can be controlled entirely by the engine when a belt is employed which connects the engine-pulley with the band-wheel, or either one or both of the rope-reels can be controlled independently and the tools and easing lowered under the control of their respective brake arrangements.

Under the usual arrangements of machines of this character the main drilling-rope has to be removed from the main rope-spool when a casing has to be lowered and a casing-line substituted therefor, and much labor and loss of time are involved under such arrangement. By the construction shown in the machine of this invention, wherein separate reels are employed for the main drilling-rope and the casing line or rope, the main rope can be left on the rope-reel, and by throwing the intermediate gear 18 out of mesh the said reel will remain stationary while the casing-reel is being operated, and as soon as the casing has been put into or Withdrawn from the well the casing-reel-driving mechanism can be thrown out of gear and the main-rope-spool-driving mechanism again thrown into gear.

It will be seen from the foregoing descrip too IIO

tion that although the machine of this invention is simple of construction it will be found thoroughly efficient in use for the various purposes designed and that unnecessary wear of certain of the parts is positively obviated.

What I claim is- 1. In a well-drilling machine, a main ropespool carrying a gear,a clutch-controlled driving-gear, and an intermediate gear shiftable into and out of mesh with the said gears.

2. In a well-drilling machine, a main ropespool carrying a gear,a clutch-controlled driving-gear, an intermediate gear shiftable into and out of mesh with the said gears, and brake mechanism associated with the shaft of the rope-spool.

3. In a Well-drilling machine, a casing-reel carrying a gear, a clutch-controlled drivinggear, and a shaft carrying two gears, one of which is in permanent mesh with the gear of the casing-reel and the other adapted to be shifted into and out of mesh with the clutchcontrolled gear.

4. In a well-drilling machine, a casing-reel carrying a gear, a clutch-controlled drivinggear, a shaft carrying two gears, one of which is rigid with the shaft and in permanent mesh with the casing-reel gear and the other adapted to be shifted into and out of mesh with the clutch-controlled gear, and brake mechanism associated with the fixed gear.

5. A well-drilling machine comprising a rope-spool carrying a gear, a clutch-controlled driving-gear, an intermediate gear shiftable into and out of mesh with the said gears, brake mechanism associated with the shaft of the rope-spool, a casing rope-reel carrying a gear, a shaft carrying two gears, one of which is rigid with the shaft and inpermanent mesh with the casing-reel gear and the other adapted to be shifted into and out of mesh with the clutch-controlled gear, and brake mechanism associated with the fixed gear.

6. A welldrilling machine comprising a shaft carrying at one end a band-wheel, at its opposite end a crank and intermediate of its ends a clutch member, a gear-wheel loosely mounted on the shaft and adapted to be locked thereon by the clutch member, a rope-reel, a gear-wheel carried thereby at one end and brake mechanism at the opposite end, an intermediate gear disposed between the clutchcontrolled gear and the rope-reel gear, and means for throwing the intermediate gear into and out of mesh with the said gears.

7.- In a well-drilling machine, the combination of a crank-bearing shaft, a driving-pulley and clutch-hub fixed immovably thereto, a gear-wheel loosely mounted on the crankshaft and so arranged that when the clutch is thrown in gear it becomes a part of the crankshaft and revolves therewith, a rope-reel, a gear-wheel on the rope-reel shaft, a brakewheel on the latter shaft, an intermediate gear-wheel between the two first-named gears and meshing with both when all are in the same line, the said intermediate gear-wheel being s'lidable on its hearing so that it can be thrown into and out of mesh with the other gear wh eels when the rope-reel is running for the purpose of lowering the drilling-tools into a hole, or thrown into mesh with the other gear-wheels when it is desired to rotate the rope-reel for the purpose of winding up the drilling-rope, or for other purposes.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

GEORGE DUDLEY LOOMIS.

Witnesses:

RUSH ABBOTT, E. R. G001). 

